580 



INDEX 



Marshall, 430 101 , 52D 22 



Marshes, 474 



Martens, 71 3 , 221 21 , 222 s3 , 358 67 ' 86 , 376 4 - 7 , 



418 6 , 420 114 , 503 21 , 525 5 

 Mast, 189, 221 9 

 Mastigocerca setifera, 298 

 Mastigoteidhis flammea, 265 

 Mastus reversalis, 383 

 Matano, Lake, 86 

 Matheson, 222 s 

 Matschie, 419 33 

 Matthew, 72 61 , 89, 119 12 - 34 , 110 



on accidental dispersal, 69 

 Matula, 183 



Maxwell-Lefroy, 31 u , 526 28 

 May, 222 72 

 Mayer, 222 80 

 Mazzarelli, 162 17 

 McCulloch, 526 26 

 McEwen, 162 18 

 Meandrina, 214, 215 

 Means of dispersal, 55 



for fresh-water animals, 60 



for terrestrial animals, 62 

 Mechanitis, 93 

 Mediterranean Sea, 281 



salinity, 164 



temperature conditions, 156, 280 



tides, 179 

 Megaloplankton, 233 

 Megalops, 114 

 M. thrissoides, 114 

 Megaptera, 243 

 Megusar, 418* 

 Meisenheimer, 271, 286 1 - 18 

 Meisenheimer's divisions of the pelagial, 



270 

 Melampus, 196 

 Melania, 354, 359 

 Melanocelus, 254 

 M. krechi, 265 

 Melanopsis, 354, 359, 374 

 Melanopus spretus, 459 

 Melanostigma, 278 

 Meledella, 94 

 M. werneri, 536 

 Melinaea, 93 

 Melinna cristata, 194 

 Melitaea, 508 

 Mellies, 96 2S 



Melo, 238 



Melolontha vulgaris, 145 



Melospiza melodia atlantica, 3 



M. melodia melodia, 3 



Melusina, 314 



Membranipora, 245, 246 



M . pilosa, 284 



Menke, 222 34 



Menzel, 358 100 



M crops apiaster, 121 



Merriam, 419 36 , 503 20 



Mesiles, 112, 128 



Mesogloea, 225 



Mesoplankton, 233 



Messina, Straits of, 154, 171 



Messor, 411, 461 



Metabolic water, 49 



Metabolism, rate of, 15 



Metalimnion, 324 



Metoponorthus, 466 



Meyer, 247 6 , 420 115 



Meyer and Mobius, 162 9 



Michaelsen, 71", 120 50 - 60 , 134 7 , 145 9 , 



163 58 , 287 43 

 Michigan, Lake, 38 

 Microcebus, 409 

 Microhydra, 95 

 Micromelania, 347 

 Microplankton, 233 

 Microspathodon dorsalis, 219 

 Microtus arvalis, 502, 542 

 M. nivalis, 502 

 M . pennsylvanicus, 388 

 M. ierrestris, 380, 410, 542 

 Middendorff, 71 37 , 163 35 , 319 26 , 441 22 , 



468 21 , 489 19 , 504 54 , 514 13 - 16 > 20 

 Mielck, 22 1 23 

 Migration, in mountains, 502 



of mammals, 412 



of seals and sea lions, 480 



seasonal, 411 

 Migration routes, 397 

 Migration theory of bipolarity, 279 

 Milkweed butterfly, history of spread, 



122 

 Millepora, 214 



Miller, 96 68 , 357 19 , 419 47 , 475, 488 8 

 Milnesium, 356 

 M. tardigradum, 122, 357 

 Minimum, law of, 21 



